Description
_TIFFCheckMalloc and _TIFFCheckRealloc in tif_aux.c in LibTIFF through 4.0.10 mishandle Integer Overflow checks because they rely on compiler behavior that is undefined by the applicable C standards. This can, for example, lead to an application crash.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | tiff | 4.0.10+git190814-1 | — |
| Debian 13 | tiff | 4.0.10+git190814-1 | — |
| Debian 12 | tiff | 4.0.10+git190814-1 | — |
| Debian 10 | tiff | 4.1.0+git191117-2~deb10u1 | DSA-4608-1 |
| Debian 9 | tiff | 4.0.8-2+deb9u5 | DSA-4670-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 8 | tiff | 4.0.3-12.3+deb8u9 | DLA-1897-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | tiff | 4.0.9-5ubuntu0.3 | USN-4158-1 |
| Ubuntu 16.04 LTS | tiff | 4.0.6-1ubuntu0.7 | USN-4158-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 16.04 LTS | tiff | 4.0.6-1ubuntu0.8+esm9 | USN-5841-1 |
| Ubuntu Pro 14.04 LTS | tiff | 4.0.3-7ubuntu0.11+esm6 | USN-5841-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | libtiff +2 | 4.0.9-17.el8 | RHSA-2020:1688 |
| RHEL 7 | libtiff +3 | 4.0.3-35.el7 | RHSA-2020:3902 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP2 | tiff | 4.0.9-5.30.28 | SUSE-SU-2020:2744-1 |
| SLES 15 SP1 | tiff | 4.0.9-5.30.28 | SUSE-SU-2020:2744-1 |
| SLES 12 SP5 | tiff | 4.0.9-44.42.1 | SUSE-SU-2019:3058-1 |
| SLES 12 SP4 | tiff | 4.0.9-44.42.1 | SUSE-SU-2019:3058-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP5 | tiff | 4.0.9-44.42.1 | SUSE-SU-2019:3058-1 |
| SLES for SAP 12 SP4 | tiff | 4.0.9-44.42.1 | SUSE-SU-2019:3058-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | tiff | 4.6.0-2.1 | openSUSE-SU-2024:13381-1 |
| openSUSE Leap 15.2 | tiff | 4.0.9-lp152.11.3.1 | openSUSE-SU-2020:1561-1 |
| openSUSE Leap 15.1 | tiff | 4.0.9-lp151.10.3.1 | openSUSE-SU-2020:1840-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | tiff | 4.0.10-r1 | — |
| Alpine v3.23 | tiff | 4.0.10-r1 | — |
| Alpine v3.22 | tiff | 4.0.10-r1 | — |
| Alpine v3.21 | tiff | 4.0.10-r1 | — |
| Alpine v3.20 | tiff | 4.0.10-r1 | — |
Show 13 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | tiff | 4.0.10-r1 | — |
| Alpine v3.18 | tiff | 4.0.10-r1 | — |
| Alpine v3.17 | tiff | 4.0.10-r1 | — |
| Alpine v3.16 | tiff | 4.0.10-r1 | — |
| Alpine v3.15 | tiff | 4.0.10-r1 | — |
| Alpine v3.14 | tiff | 4.0.10-r1 | — |
| Alpine v3.13 | tiff | 4.0.10-r1 | — |
| Alpine v3.12 | tiff | 4.0.10-r1 | — |
| Alpine v3.11 | tiff | 4.0.10-r1 | — |
| Alpine v3.10 | tiff | 4.0.10-r1 | — |
| Alpine v3.9 | tiff | 4.0.10-r1 | — |
| Alpine v3.8 | tiff | 4.0.10-r1 | — |
| Alpine v3.7 | tiff | 4.0.10-r1 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | libtiff +3 | 4.0.3-35.amzn2 | ALAS2-2020-1532 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | libtiff +1 | 4.0.9-17.el8 | ELSA-2020-1688 |
| Oracle Linux 7 | libtiff +3 | 4.0.3-35.el7 | ELSA-2020-3902 |
Advisories 17
- WID-SEC-2026-4026 Red Hat OpenShift: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 18, 2026
- USN-5841-1 tiff vulnerabilities Ubuntu Security Notices (USN) · Jun 29, 2026
- RHSA-2020:3902 Red Hat Security Advisory: libtiff security update Red Hat Security Advisories (RHSA) · Jun 27, 2026
- RHSA-2020:1688 Red Hat Security Advisory: libtiff security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- USN-4158-1 tiff vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- DSA-4670-1 tiff - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-4608-1 tiff - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1897-1 tiff - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2020:2744-1 Security update for tiff SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:1840-1 Security update for tiff SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:13381-1 libtiff-devel-32bit-4.6.0-2.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:1561-1 Security update for tiff SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:3058-1 Security update for tiff SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2023-0270 libTIFF: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Nov 9, 2025
- ALAS2-2020-1532 Moderate: libtiff security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 22, 2020
- ELSA-2020-3902 Moderate: libtiff security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Oct 6, 2020
- ELSA-2020-1688 Moderate: libtiff security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 5, 2020
References
- https://gitlab.com/libtiff/libtiff/merge_requests/90
- [debian-lts-announce] 20190825 [SECURITY] [DLA 1897-1] tiff security update mailing-list
- 20191104 [slackware-security] libtiff (SSA:2019-308-01) mailing-list
- http://packetstormsecurity.com/files/155095/Slackware-Security-Advisory-libtiff-Updates.html
- FEDORA-2019-6eeff0f801 vendor-advisory
- FEDORA-2019-e45019c690 vendor-advisory
- 20200121 [SECURITY] [DSA 4608-1] tiff security update mailing-list
- DSA-4608 vendor-advisory
- DSA-4670 vendor-advisory
- openSUSE-SU-2020:1561 vendor-advisory
- openSUSE-SU-2020:1840 vendor-advisory